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Old 03-14-2017, 03:59 PM
rv7charlie rv7charlie is online now
Join Date: May 2006
Location: Pocahontas MS
Posts: 2,840

Add me to the list agreeing with Ernst. Over a decade running E-free premium mogas in a carb'd 160 HP -4. Exactly *one* problem: me. Winter blend still in the tanks a couple of months into summer, gascolator in the stock position on the bottom of the firewall, 20 minute flight followed by sitting on a ramp for 2 hours in 100+ degree temps. Removed the gascolator-fuel boiler, made sure I'm not running winter blend in summer heat, and no further problems.

The only reason I don't run E-gas is that the plane was built (not by me) in 1991, and has already has issues with tanks leaking. I don't trust the tank sealant to be E-proof, like current sealants.

With injection & no gascolator, or with EFI, there should be no issues whatsoever with mogas, as long as the engine is less than around 9-1 compression.

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